Finding the Fourth Proportional to 10,348.79, 15,513.86 and 4,105.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,348.79 : 15,513.86 = 4,105.71 : x
2. Step 2: Convert to fraction form
   10,348.79/15,513.86 = 4,105.71/x
3. Step 3: Cross multiply
   10,348.79x = 15,513.86 × 4,105.71
4. Step 4: Simplify right side
   10,348.79x = 63,695,420.40
5. Step 5: Solve for x
   x = 63,695,420.40/10,348.79
6. Step 6: Final answer
   x = 6,154.87